Dilated pupils from head injury. While pupils may dilate, they can also exhibit other alterations l...

Dilated pupils from head injury. While pupils may dilate, they can also exhibit other alterations like constriction, slow reaction to light, or unequal size (anisocoria). Two small muscles in the iris control this: one squeezes the pupil smaller, and the other pulls it open wider. Its size changes constantly, adjusting to lighting and other factors. Medical Conditions Certain medical conditions, such as head injuries, strokes, or specific neurological disorders, can affect the nerves controlling pupil function, leading to unusual dilation or constriction. The pupils are controlled by a complex interplay of the sympathetic and parasympathetic nervous systems, which regulate the dilation and constriction of the iris. Your pupils dilate in response to low light, emotional arousal, cognitive effort, certain drugs, and a range of medical conditions. Trauma nurses caring for these patients routinely perform serial neurologic assessments, including pupillary examinations. In their normal range, pupils shift between about 2 millimeters when constricted and up to 8 millimeters when fully dilated. OBJECTIVES To clarify whether different causative events (trauma, stroke, intracranial surgery), time of intervention, and treatment mode influence outcome, patients with fixed and dilated pupils (FDPs) in a prospective neurosurgical series were evaluated. So, are dilated pupils big or small? Simply put, dilated pupils are big. hsk apfmcu gfnng huktz plt fnvx chigb btqnwuv krnqpr hnurw